/Engine/Source/Runtime/Engine/Classes/Animation/AnimInstance.h
Get whether a particular notify type was active in a specific state machine last tick.
bool WasAnimNotifyTriggeredInStateMachine ( int32 MachineIndex, [TSubclassOf](API\Runtime\CoreUObject\Templates\TSubclassOf)< [UAnimNotify](API\Runtime\Engine\Animation\AnimNotifies\UAnimNotify) > AnimNotifyType )